05S_1XC9201/9202新規 02.09.12 15:16 ページ 538
XC9201Series
■Block Diagram
EXT timming�
controll�
logic
Current�
Limit�
Protection
VSS
EXT
VOUT
R1
R2
Verr
ISEN
VIN
Limitter comp.
MIX
PWM
CC/GAIN
Internal�
Voltage�
Regulator
Ierr
Ramp Wave,�
Internal CLK�
generator
2.0V�
to internal�
circuit
Sampling
CE,UVLO�
to internal�
circuit
CLK
Chip Enable,�
Soft Start up,�
U.V.L.O.
CE/SS
0.9V
5
Vref generator
■Absolute Maximum Ratings
Ta=25℃�
UNITS
R A T I N G S
－0.3～VDD＋0.3
－0.3～＋22
－0.3～＋22
－0.3～＋22
－0.3～VDD＋0.3
－0.3～VDD＋0.3
－0.3～＋22
±100
PARAMETER
EXT Pin Voltage
ISEN Pin Voltage
VIN Pin Voltage
SYMBOL
VEXT
VIsen
VIN
Ｖ�
Ｖ�
Ｖ�
Ｖ�
Ｖ�
Ｖ�
Ｖ�
CE/SS Pin Voltage
CLK Pin Voltage
CC/GAIN Pin Voltage
VCE
VCLK
VCC
VOUT/FB Pin Voltage VOUT/FB
EXT Pin Current
IEXT
Pd
mA
Continuous Total �
Power Dissipation
150
mW
℃�
℃�
Operating Ambient �
Topr
Tstg
－40～＋85
－55～＋125
Temperature
Storage Temperature
538
TOREX [ Torex Semiconductor ]
